HDD Test Tools

CheckDisk : http://www.majorgeeks.com/mg/getmirror/checkdisk,1.html

GSmartControl : http://sourceforge.net/projects/gsmartcontrol/?source=typ_redirect

Seagate SeaTools : http://www.seagate.com/au/en/support/downloads/item/seatools-win-master/

HDDScan : 

Active SMART : http://www.ariolic.com/download.html

CheckDiskGUI : http://www.wieldraaijer.nl/

CrystalDiskInfo  : http://crystalmark.info/software/CrystalDiskInfo/index-e.html

CrystalDiskMark : https://crystalmark.info/en/download/#CrystalDiskMark

Hitachi / Western Digital - http://www.hgst.com/support/hard-drive-support/downloads

Fujitsu Diagnostic Tool : http://www.majorgeeks.com/mg/getmirror/fujitsu_windows_diagnostic_tool,1.html

Macrorit Disk Scanner : http://www.majorgeeks.com/mg/getmirror/macrorit_disk_scanner,1.html

Ariolic Disk Scanner : http://www.ariolic.com/disk-scanner.html

Free EASIS Drive Check Tool : http://www.easis.com/download/EASIS-Drive-Check-setup.exe

Samsung Drive Test Tool Boot CD  : http://www.majorgeeks.com/files/details/samsung_drive_diagnostic_utility_(hutil).html

Western Digital Data LifeGuard Diagnostics for windows : http://download.wdc.com/windlg/WinDlg_v1_28.zip